Perpetual calendar clock



y 1952 G5 KELLNER 2,595,467

PERPETUAL. CALENDAR CLOCK Filed July 16, 1948 4 Sheets-Sheet 1 IN V EN TOR. GABRIEL. KELLNER y 1952 G. KELLNER 2,595,467

PERPETUAL CALENDAR CLOCK Filed July 16, 1948 4 Sheets-Sheet 2 H V) !//l" a.

105 g 9- INVENTOR. 2| 31 GABRIEL KELLNER 3! BY y 1952 G. KELLNER 2,595,467

PERPETUAL CALENDAR CLOCK Filed July 16, 1948 4 Sheets-Sheet 3 "jq i N:

32 I m \IOI 36 \7 5 1 .29.15.

a H INVEN TOR. ZI\H 3% zz GABRIEL KELLNER May 6, 1952 G. KELLNER 2,595,467

PERPETUAL CALENDAR CLOCK Filed. July 16, 1948 4 Sheets-Sheet 4 INVEN TOR. GABRIEL KELLNER Patented May 6, 1952 UNITED STATES-PATENT OFFICE 2,595,467 PERPETI IAL CALENDAR CLOCK Gabriel Kellner, New York, N. Y. i

Application July 16, 1948, Serial No. 39,057

This invention relates to new and useful improvements in a horological apparatus having a perpetual calendar and a signalling device which may be set to operate on any preselected day or days which are to be remembered; such as, birth- 3 Claims.

- starting position in order that these parts be days, anniversary dates, special holidays or the like.

More particularly, the present invention proposes the construction of a horological apparatus having a conventionally constructed electric clock mechanism and a perpetual calendar operated by the clock mechanism to function each day to register the day of the week, the proper month of the year and the ordinal date of the month, regardless of whether the month has 28, 29, 30 or 31 days.

. Another object of the present invention proposes enclosing the apparatus of the present invention within a single casing with the perpetual calendar displayed at the front thereof below the face of the electric clock mechanism and a signal visible below the perpetual calendar in manner so that both the calendar and signal will be clearly visible when viewing the clock mechanism.

Still further the present invention proposes a control for the signal means coupled to the perpetual calendar mechanism to be operated thereby in a manner to permit one or more preselected dates to be designated on the signal means well in advance of the dates and to then function automatically when the calendar reaches the preselected day or days.

It is an important feature of the present invention to provide an automatic horological apparatus which will be foolproof in operation and which will serve every need of the average family.

Heretofore, numerous attempts have been made to provide perpetual calendars operated automatically by clock mechanisms; however, such prior constructions have proven inoperative as they failed to include electrical controls which are positive in their action and which effectively break the electric circuits to prevent a premature advance of the date carrying drum or drums.

In mechanisms of the type to which the present invention relates, it is vitally important to have an electrical control which is positive in its action. In the prior attempts to construct such a perpetual calendar the electric contacts of the electrical control are continually connected making it impossible to properly'reset the mechanical portions of the construction for repeated operations. In devices of this type it is essential that the movable parts, controlled by the electrical circuits be automatically and fully reset to their properly reconditioned for the next operation.

It is an object of the present invention to provide a positive acting mechanical means for restoring the electrical circuit; and more particularly, the mechanical parts controlled by the electrical circuit, for automatic repeated operations. At the end of certain short months of each year up to four repeated operations of the electrical circuit are required to advance the ordinal-date drum from the last day of those short months to the first day of the next month without turning the week-day drum.

In accordance with the present invention it is proposed to advance the ordinal-date drum through of a revolution to change from one day date to the next day date and to divide each of a revolution into one of a revolution effected by the electrical circuit and a second ,4 of a revolution eifected mechanically by the mechanism which restores the electrical circuit and the parts controlled thereby to their starting positions for repeated operations, in a manner to insure proper resetting of the electrical circuit for the required repeated operations.

" It is a further object of the present invention to provide three rotatable drums having portions of their peripheries plainly visible for displaying the proper week-day names, the month names and the ordinal dates.

Another object of the present invention proposes providing the first of the three drums with the names of the seven days of the week and to advance that drum mechanically by means of the clock mechanism through one-seventh of a revolution once in every 24 hours in a manner to change the day name and closea switch to energize the electrical controls for the further electrical operations to change the ordinal-date drum and the month-name drum, at the end of the month.

Still another object of the present invention proposes providing the second of the three drums with the names of the twelve months of the year and a plurality of contacts mounted on a side periphery of that drum in alignment with the names of the short months of the year in a manher to condition the electrical controls for repeated advancements of the ordinal-date drum at the ends of those short months without advancement of the week-day drum.

A further object of the present invention proposes the provision of a novel means for advancing the month-name drum through of a revolution and controlled by the ordinal-date drum 3 when changing from the ordinal date number 31 to the ordinal date number 1 of the next succeeding month.

The present invention also proposes providing the third of the three drums with the ordinal date numbers from "1 to 31 and spaced contacts thereon aligned with the numbers 29, 30 and 31 and arranged in a manner to cooperate with the contacts of the month-name drum to effect the necessary advance of the ordinal-date drum to display the ordinal date number 1 at the ends of the short months of the year.

Still further the present invention proposes characterizing the signalling means by a cylinder arranged to be rotated in unison with the ordinaldate drum and having a plurality of contacts arranged to be selectively extended from the periphery of the cylinder in accordance with a particular date or dates to be remembered in a manner to cooperate with fixed contacts of a signal circuit to operate the signal means when the preselected day or days are reached.

It is further proposed to characterize the signal means by a pivotally mounted arm controlled by movements of the month-name drum and arranged to be pivoted from one contact of the fixed contacts of the signal circuit, referred to in the preceding paragraph, to the next succeeding contact in a manner to successively bring the contacts into operative connection in the circuit of the signalling means.

It is a still further object of the present invention to construct a simple and durable apparatus which is automatic and foolproof in its operation and which can be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a schematic wiring diagram of the electrical circuit of the perpetual calendar mechanism of th present invention.

Fig. 2 is a front elevational of the horological apparatus embodying the perpetual calendar and constructed in accordance with the present invention.

Fig. 3 is an enlarged front elevational view similar to Fig. 2, but with the casing and the clock face and hands removed and with the top portion thereof broken away.

Fig. 4 is a rear elevational view of Fig. 3.

Fig. 5 is a side elevational view of Fig. 3 looking toward the right hand side thereof.

Fig. 6 is a vertical sectional view taken substantially on the line 66 of Fig. 3.

Fig. 7 is a view similar to Fig. 6, but illustrating a different position of the parts.

Fig. 8 is a vertical sectional view taken substantially on the line 8-8 of Fig. 3.

Fig. 9 is a view similar to a portion of Fig. 8, but illustrating a different position of the parts.

Fig. 10 is a horizontal sectional view taken on the line |fll U of Fig. 3.

Fig. 11 is a detailed sectional view of one of the fixed contacts taken on the line I ll I of Fig. 10.

Fig. 12 is a perspective view of the fixed conductor tube, per se.

Fig. 13 is a partial vertical sectional view taken substantially on the line l3-! 3 of Fig. 5.

Fig. 14 is a partial vertical sectional view taken on the line l4l4 of Fig. 13.

Fig. 15 is a partial vertical sectional view taken on the line l5l5 of Fig. 13.

Fig. 16 is an end elevationview of the ordinaldate drum, per se, looking from the left-hand side of Fig. 13.

Fig. 17 is a partial vertical sectional view through the month-name drum taken on the line fll1 of Fig. 13.

Fig. 18 is a horizontal sectional view of the operating cylinder of the signal means taken on the line l8l8 of Fig. 13.

Fig. 19 is an enlarged detailed View of a portion of Fig. 18.

Fig. 20 is a plan view of Fig. 19.

Fig. 21 is an enlarged partial vertical sectional view of the shuttle switch, per se.

The horological apparatus having the perpetual calendar, according to the present invention, includes a base 20 on which is suitably fixed a framework having upstanding side plates 2| and 22 spanned at their top ends by a cross-structure 23, see Fig. 4.

Extended across the front edges of the side plates 2| and 22 there is a horizontal frame 23 formed with spaced openings 23*, 23 and 23 for a purpose which will become clear as this specification proceeds. The horizontal frame 23 is located midway between the height of the side plates 2! and 22. The back edges of the side plates 2i and 22, immediately behind the horizontal frame 23, are bridged by a plate 45 of insulation material. The plate 45 is integrally formed with partitions SI and I99 of insulation material, which extend forward to the back face of the frame 23, as shown in Figs. 1, 10, 13, 15 and 17, and divide the pace between the side plates 2i and 22 into three adjacent chambers, one for each of three drums as will become clear as this specification proceeds.

The cross-structure 23 supports a conventional electrically operated clock mechanism 24 having a dial plate 24 and the usual 12-hour dial face 2 1 across which move the usual hour hand 24, minute hand 24 and second hand 24 see Fig. 2. The entire clock mechanism is enclosed within a casing 24 which has its bottom resting on the top face of'the base 20. The front of the casing 24 is formed with vertical arranged window openings 24 24 and 24 The window opening 24 is aligned with the dial plate 24 and the window opening 24 is aligned with the openings 23, 23 and 23 formed in the frame 23', as shown in Fig. 2. The window opening 24 will be described hereinafter.

The hands 24, 24 and 24 are mounted on respective shafts driven by the clock mechanism and the shaft 24 upon which the hour hand 24 is mounted, is providedwith a gear 25, see Fig. 3. Other details of the electric clock mechanism 24 will not be given in this specification as they form no part of this invention.

The gear 25 meshes with a gear 26 which carriesan eccentrically mounted stud 21. The gear 25 has a pitch diameter twice that of the gear 25 so that the gear 26 will make one complete revolution during each 24 hour period while the gear 26 carried by the hour hand shaft 24 makes two revolutions during each 24 hour period. A lever 28 is pivoted at 29 and has a free end disposed in the path traversed by the stud 21 to be engaged and tripped by the stud once during each revolution of the gear 26. The other end of the lever 28 is formed with a slot 23 into which projects'a pin-like arm3|l extending from a slide 3|,,see,Figs. 3 and 6. The slide 3| is suitably guided for vertical movement by means which includes a vertically arranged slot 32 formed through the side plate 2 I. Pivotal movement of the lever 28 will raise the slide 3| against the action of a, spring 33, see Fig. 6, which holds the slide 3| in a lowered position. When the slide 3| is thus raised, against the action of the spring 33, it raises a pawl 34 which is pivoted on the slide 3|,.at 35. Normally, the pawl 34 engages a seven-toothed ratchet wheel 38. This upward movement of the slide 3| is gradually performed, occupying the space of several hours, at the end of which period of time, at midnight in a 24 hour period. the stud 21 disengages the free end of the lever 28 freeing the lever, so that the slide 3| is free to be urged downwards by the spring 33 to reengage the pawl 34 with the seven-toothed ratchet wheel 36 and advance the wheel one tooth. This movement returns the lever 28 to its starting position to be-reengaged by the stud 21 upon completion of the next revolution of the ear 28.

Week-day drum The week-day drum is the drum 31, see Figs. 2, 3, 4, and 13, which has imprinted on its periphery the names of the seven days of the week. The week-day drum 31 is made of insulation material and is arranged to be rotated through oneseventh of a revolution by the pawl 34 and seventoothed ratchet wheel 36 to align a different one of the week-day names with the opening 23 in the frame 23', see Figs. 2 and 3. A shaft 32' is fixedly extended between the side plates 2| and 22 and through the partitions 8| and I80, see Figs. 10 and 13. The week-day drum 3? is rotatively mounted on the shaft 3! in the chamber between the adjacent faces of the side plate 2! and the partition I00. A tubular projection extends beyond the side of the week-day drum 37 adjacent the side plate 2| and the seven-toothed ratchet wheel 36 is tightly fitted on that projection, see Fig. 10, to rotate the week-day drum 3! one-seventh of 9, revolution each time the seventoothed ratchet wheel 38 is advanced one tooth by the pawl 34.

It is thus apparent that the week-day drum 3'! is advanced mechanically by the electrically operated clock mechanism, 24, through one-seventh of a revolution at the end of each 24 hour period.

Month-name drum The month-name drum is the drum 38 and is imprinted on its periphery with the names of the twelve months of the year which are arranged to be aligned with the opening 23 of the frame 23 by rotating the month-name drum 38 through one-twelfth of a revolution at the end of each calendar month.

The month-name drum 38 is rotatively mounted on the shaft 31 in the chamber between the adjacent faces of the partitions 8| and I88 and has fixedly mounted on its side, adjacent the partition 8|, see Figs. 10 and 13, a ring-like end portion 84 of insulation material. The ring-like end portion 84 has set therein four contacts 85, 89, 81 and 88. The contacts 85, 89, 81 and 88 are all of equal width radially of the ring-like end portion 84 and are mounted on the ring-like end portion in alignment with the names of the short months of April, June, September and November imprinted on the periphery of the month-name drum 38. The ring-like end portion 84 has set therein a fifth contact 89 which is wider, radially of the ring-like end portion, than the four contacts 85, 86, 81 and 88 and which is mounted on the ring-like end portion 84 in alignment with the name of the month of February imprinted on the periphery of the month-name drum 38.

All of the contacts 85, 86, 81, 88 and 89 are conductively connected by a ring-like plate 5| and an extension 98 to a fixedly mounted conductor tube 52 on the shaft 31 The conductive path afforded by the tube 52 is indicated by the reference numeral 52 in the schematic wiring diagram of Fig. 1. Therefore all of the contacts 85, 86, 81, 88 and 89 are connected to the lead 43 in turn connected to the lead 43*, see Fig. 1.

Mounted upon the side of the month-name drum 38, within the ring-like end portion 84 and adjacent the contact 89, there is a-wheel 98 in the form of a Maltese-cross and made of insulation material. The wheel 90 is rotatively mounted on the extension 93 by means of a pin 9|. On each of three adjacent arms of the wheel 98 there is a contact 92, see Figs. 14 and 15, and the fourth arm has no contact.

The Wheel 90 is arranged to be turned through 90 degrees at the end of each year, by a tooth 93 carried by the fixed conductor tube 52. The conductor tube 52 is fixedly mounted on a sleeve 94, see Figs. 10 and 13, of insulation material, which is urged into electrical contact with the end of the extension 93 of the ring-like plate 5|, by means of a spring 95. The sleeve 94 is longitudinally slidable but non-rotatively supported on the shaft 37 by an inter-engaging key and keyway as is commonly known to those skilled in the art.

The wheel 99 is so angularly adjusted that during each'of the three February months (in a four year cycle including a February of 29 days) having 28 days, one of the three arms of the wheel 90 which carry the contacts 92, will have its contact 92 in electrical contact with the extension 93 immediately adjacent the contact 89, as shown in Fig. 14. In February of a leap year (when February has 29 days) the arm of the wheel 99 which has no contact will be in contact with the extension 96 immediately adjacent the contact 89.

ordinal-date drum The ordinal-date drum is the drum 39 and is imprinted on its periphery with the numbers from 1 to 31 corresponding to the ordinal dates of the month, and which are arranged to be successively viewed through the opening 23 of the frame 23', see Figs. 2 and 3.

The ordinal-date drum 39 is rotatively mounted on the shaft 3'! in the chamber between the adjacent faces of the partition 8| and the side plate 22. Mounted on the side of the ordinaldate drum 39 adjacent the plate 22, there are thirty-lane uniformly spaced pins 13. The pins are so located on the side of the drum 39 that when the drum is rotated, in the direction of the arrow 39 shown in Fig. 8, the ordinal-date number aligned with the opening 23 of the frame 23', Figs. 2 and 3, will be changed to register a one digit advance.

Mounted on the left side of the ordinal-date drum 39, adjacent the partition 8|, there is a contact plate 41, see Figs. 10 and 16, having three stepped contacts 41 41 and 41. The stepped contacts 4-1 41 and 41. are arranged in alignment with the ordinal-dates 29, 39 and 3| on the periphery of the ordinal-date drum 39'.

The drums 38 and'39 are arranged to be rotated by an electrically controlled means to be described more fully as this specification proceeds.

7 Mechanism for advancing ordinal-date drum The rotation of the ordinal-date drum 39 is achieved by a solenoid 40 mounted on the base 20 and connected in an electrical circuit having terminals 4| and 42 for connection in a conventional electric line. The terminal 4! is connected by a lead 43. see Fig. 1, to a contact 44 of a pair oi spaced contacts 44 and 45. The contacts are mounted adjacent the end plate 2i upon the insulation plate 45 which bridges the back of the side plates 24 and 22. The contact is connectedby a lead 43 to one side of thesolenoid 40. The other side of the solenoid 46 is connected by means of a lead 43 with the terminal 42, and a shuttle switch 53 is interposed in the lead 43 Means is provided for bridging the contacts 44 and 45 to complete the electrical circuit to energize the solenoid 45. This bridging means comprises a switch arm 54 pivotally mounted on the side plate 2| adjacent the seven-toothed wheel by a pin 55, see Figs. 6 and 7. The switch arm 54 carries a contact 54 mounted on an end 5 3* of insulation material. The contact th is of a width to bridge the contacts 44 and 45 and close the circuit to the solenoid at, when the switch arm 54 is pivoted toward the contacts i -5 and The switch arm 54 has a portion disposed in the path traversed by the teeth of the seven-toothed ratchet wheel and during each one seventh revolution of the wheel 36 one tooth engages and pivots the switch arm 53 from the pos "'iori shown in Fig. 6 to the bridging position shown in Fig. 7. The contacts 44 and 45 are of the spring type and frictionally bear against the side of the contact 54 retaining the switch arm 54 in the pivoted position shown in Fig. 7 until the switch arm is mechanically returned to the starting position shown in Fig. 6.

Movement of the switch arm 54 acts, through engagement of a depending arm 55 thereof with an arm 51 upstanding from a rocker 58, to swing said rocker to move an arm 59 dependingtherefrom, to dispose the arm 59 as shown in Fig. 7.

Incidental to the movement of the switch arm 54 which closed the solenoids circuit at the contacts 44 and 45, the arm 59 became disposed as shown in Fig. 7, for later predetermined coaction with a pin 68 on the slide bar This, however, did not prevent movement of the slide bar 33 in the direction of the arrow 6 l in Fig. 6, in response to energization of the solenoid All; because the rocker 58 is pivoted at 58 to a block suitably mounted on the end plate 2| for up and down turning movement by a pin 65. The block 66 is normally urged to a lowermost. position (that shown in Figs. 6 and 7) by a spring 51. When the slide bar 63 is moved by the solenoid 4&1 in the direction of the arrow 6|, with the arm 59 depending in the path of the pin 68, the block 66 pivots upwards against the spring 5'5 permitting the pin 68 to clear the cammed lower end 59 of the arm 59.

The solenoid it controls movement of a T- shaped core 88, see Figs. 4 and 5, which has extended through the head end thereof, a cross rod 62. The intermediate portion of the rod 62 extends through the core 6G and the ends thereof are attached to slide bars 63 and 54 supported for longitudinal sliding movement in suitable guides mounted on the inside faces of the side plates 2| and 22 beneath the drums 3'1, 38 and 39.

A spring 69 attached to the base the cross rod I 62 between portions 28 acts on of the T- shaped core 60, and urges the core into the fully extended position shown in Fig. 5, and which in turn acts to retain the slide bars 63 and 64 in the fully extended positions shown respectively in Figs. 6 and 8.

The slide bar 64 is connected with a pallet ll, see Figs. 8 and 9, which coacts with the pins ll] of the ordinal-date drum 39. The pallet H is pivoted at '12 upon the side plate 22 and has its lower end formed with an elongated slot H A pin 13 projects from the side of the slide bar 64 and engages the slot ll in the lower end of the pallet TI. The other end of the pin 13 is projected through the slide bar 64 and through a slot I4 formed in the side plate 22 to be connected to the shuttle switch 53, as will be hereinafter described.

The shuttle switch 53 is of the. snap-action or toggle-type having spaced contacts 15 and arranged to be bridged by a contact 15 carried by a switch arm H3 at the exterior of the side plate 22. The switch arm '16 is formed at its upper end with a head 15 pivotally connected to the outer end of the pin 13. The arm it has its lower end freely slidably extended into an opening 15, see Fig. 21-, formed in the contact 75" and a spring ll on the arm 16 operates between the head it and the contact '15" for quick snapping of the arm 16 and in turn the contact 75" to open or close the shuttle switch 53. The slot 14 is of a length greater than the distance the contact ":5" moves to open and close the shuttle switch 53, so that as the slide bar 64 approaches each of its extremes of movement, the-spring Tl passes through a point of dead center. and snaps the contact 15" in a direction to open or close the shuttle switch depending upon the direction in which the slide bar $4 is moving.

The shuttle switch 53 is normally'in the closed position shown in Fig. 8. In this position, when the contacts 44 and 45are bridged by the contact 54 the circuit to the solenoid 40 will be completed through the shuttle switch 53, energizing the solenoid to retract its core 50, moving it in the direction of the arrow 6! on Fig. 5, and simultaneously moving the slide bars 63 and 64 to the positions shown in Figs. '7 and 9.

During this movement, the end H of the pallet "H, which is connected to the slide bar 64 to move therewith, hooks an adjacent pin '10 of the ordinal-date drum 39 and moves. the ordinal-date drum through one-half of A of a revolution or through of a revolution this movement being one-half the movement required to advance'the ordinal-date number exposed in the opening 23 to the next digit.

As the slide bar 64 approached the end of its stroke under the influence of the energizetion of the solenoid 4B, the shuttle switch 53 snapped to the position illustrated in Fig. 9, breaking the circuit to the solenoid 40 deenergizing the same and'releasing its hold on the core 59. Immediately, the spring 69 acts to return the core Bil to its extended position shown in Fig. 5 and simultaneously returns the slide bars 63 and 64 to their starting positions shown in Figs. 6 and 8.

This mechanically actuated return movement of the core 6i] andthe slide bars 53 and 64 acts to reset all of the movable'parts of the electrical circuit to their starting positions. More particularly, this return movement, through the slide bar 53, moves the pin 68 to act on the depending arm EiSJ-otthe rocker 58" and pivot the rocker on its pivot 58* and in turn pivot the switch arm 54 and withdraw its contact 54 from its frictional retained engagement with the contacts 4 4 and 45, as shown in Fig. '1, returning the switch arm 54 to its starting position shown in Fig. 6.

The return movement of the core 88 by the spring 89 also returns the slide bar 84 to its starting position shown in Fig. 8. During this return movement of the slide bar 64, the pallet 1| is also pivoted back to its starting position shown in Fig. 8 and during this pivoting, the cammed upper surface of the end 11 of the pallet 11 engages an adjacent pin of the ordinal-date drum 39 rotating the drum through a second one-half of of a revolution or a second of a revolution completing therotation of the ordinal-date drum, 39 in the direction of the arrow 39 in Fig. 8, to align the next digit on the periphery of the ordinal-date drum v shuttle switch 53 again passed through a point of dead center and the contact 15" was snapped to the position shown in Fig. 8, reclosing the shuttle switch 53.

With these operations, the week-day drum 31 and the ordinal-date drum 39 are similarlyadvanced at the end of every 24 hour period, at midnight, from one day name and date to the next and from a 31 designation, on the ordinaldate drum 39, to a 1 designation denoting the start of the next month, in full months of thirtyone days.

At the ends of the months having less than thirty-one days, following the one energization of the solenoid 40, by the rotation of the week-day drum 31 to close the contacts 44 and 45, 'addi- "tional advancements of the ordinal-date drum 39 are required, to omit in February in aregular year the dates 29, 30 and 31, to omit in February in a leap year the dates 30 and 31 and to omit in the short months of April, June, September and To accomplish these additional energizations of the solenoid 40 without closing the contacts 44 and 45, there is provided between the leads 46 and 43 a shunt subdivision of the circuit 43 and 43*, see Fig. 1.

As previously described, the side of the monthname drum 38, adjacent the partition 8|, carries the contacts 85, 86, 81, 88 and 89, see Figs. 10 and 14, for the short months of April, June, September and November and February in a regular year.

Mounted on the partition 8|, between the shaft 31 and the insulation plate there are three spaced contacts 48, 43 and 50. Each of those three contacts is substantially U-shaped as in the case of the contact 48 shown in Fig. 11, see also Fig. 10. The left-hand tines of the contacts 49 and 50, see Figs. 1 and 10, lie respectively in the paths of travel of the contacts 85, 86, 91, 88 and 89 mounted on the side of the month- 10 name drum; 38, while the left-hand tine of the contact 48 lies in the path of travel of the contact 92 of the wheel 90, which is in contact with the extension 36 adjacent the contact 89.

The right-hand tines of the contacts 48, 49 and 50 lie in the paths of travel of the stepped portions 41 41 and 41 of the contact plate41 mounted on the left-hand side of the ordinaldate drum 39. To connect the contact plate 41 with the electrical circuit, there is mounted on the partition 8| a fourth contact 91 integral with a conductor strip 48, which forms the lead identifiedby the numeral 46 in Fig. 1,;andwhich is connected to the terminal 4|,the inner end of the contact plate 41 is arranged to make electrical contact with the contact 91,- as shown in Fig. 10.

V V In the month of February in an ordinary year, the wheel 99 will be turned to a position in which oneof its contacts 92 makes contact with the extension 96 and the left-hand" tine ofthe contact 49 following a normal advanceof the ordinal date drum 39 from a 28 registration to a 2.9 registration by a closing of the contacts 44 and 45. Simultaneously, the right-hand tine of the contact 49 will be in electrical contact with the stepped portion 41 of the contact plate 41 and complete the shunt circuit to energize the solenoid 40 once to advance the ordinal-date drum 39 from the 2.9 registration to a 30 registration without moving the week-day drum 31. This completion of the circuitoccurs at midnight of thezsth day.

This movement of the ordinal-date drum 39 brings the stepped portion-41 of the contact plate 41 into contact with the right-hand tine of the contact 49 which has its left-hand tine in contact with the inner portion of the contact89, on the month-name drum 38, as shown in-Figs. 10 and 15. This effects a further energication of the solenoid 40 throughthe shunt circuit to advancethe ordinal-date drum from the; registration to a 31 registration,again-Without moving theweelr-day drum 31.

This latter movement of the ordinal-date drum 39 brings the last stepped formation 41 of the contact plate 41 into electrical contact with the right-hand tine of the contact 59, which has its left-hand tine in electrical contact with the outer portion of the contact 89' on the month-name drum 38, see Figs. 10, 14 and 15. This effects a final energization of the solenoid 40, in February of a regular year, through the shunt circuit to advance the ordinal-date drum from the 31 registration to a "1 registration, again without moving the week-day drum 31. This latter movement moves the contact plate 41 clear of all the contacts on the partition 8| leaving the shunt circuit to the solenoid 49 open.

It is apparent that the ordinal-date drum 39 has been advanced from a 28 to a 1 registration in four successive, steps. The first of the four successive steps, moving the drum 39 from a 28 to a 2.9 registration, was controlled by the closing of the contacts 44 and 45 through a normal one-seventh rotation of the week-day drum 31 by the clockmechanism and the following three stepsjwere controlled by the contact plate 41 on, the-ordinal-date drum 39 for successively energizing the solenoid 40 through the shunt circuit to-advance the ordinal-date drum 39, without effecting the week -day drum 31.

' At. the end of February in a leap year, the wheel 90 has its blank arm disposed adjacent the contact 89 to make contact with the lefthand tineof; the contact 48, and this blank arm of the wheel 90 carries no contact and so the shunt circuit is not completed to advance the ordinal-date drum 39 from a 29 registration to a 30 registration. However, at midnight of the 29th-day of February of a leap year, the usual energizing of the solenoid 48 by a closing of the contacts 44 and 45 will occur as the clock mechanism mechanically moves the week-day drum 31 to thenext day name. Simultaneously, the ordinal-date drum 39 will be moved from a 29 registration to a 30 registration. This movement will align the steppedformation 41 of the contact plate 41 with the contact 49 which is in contact with the contact 89 on the month-name drum 38 to move the ordinal-date drum 39 from a 30 registration to a 31 registration without moving the-week-day drum 31. This movement brings the stepped portion 41 of the contact plate 41 into contact with the contact 58, as previously described to move the ordinal-date drum from its 31 registration to a 1 registration.

In the short months of the year, the months of April, June, September and November which have only 30 days, an extra advance of the ordinal-date drum 39 is required, at midnight of the 30th day, to move it from its 31 registration to a 1 following the normal energizing of the solenoid 48 by the closing of the contacts 44 and 45, efiected' by movement of the weekday drum 31 to the next week day name, which moved the ordinal-date drum 39 from the 30 registration to the 31 registration. Such an extra advance of the ordinal-date drum 39 requires an energization of the solenoid 48 through the shunt circuit. This energization is effected when the ordinal-date drum 39 is moved from the 30 to the 31 registration which brings the stepped formation 41 of the contact plate 41 into contact with the right-handrtine of the contact 58 which has its left-hand tine in contact with one of the contacts 85, 86, 81 or 88, depending upon which of the short months has drawn to a close, on the month-name drum 38, which completes the shunt circuit energizing the solenoid 48 to move the ordinal-date drum 39 from its 31 registration to its 1 registration without moving the week-day drum 31.

Themonth-name drum 38 (Figs. 2, 3, 4,13, 14 and 15), is rotated through of a revolution, at the end of each month, by means of a pin 18 (Figs. 3, 13 and 16) projected from the side of the ordinal-date drum 39, and a toothed wheel 19, having twelve teeth (Figs. 3, 13 and 15) fixed on a short shaft 88 journalled in the ver tical partition 8 I. A gear 82 is fixed on the shaft 80 beyond the partition 8| and meshes with a gear 83 fixed on an end of the month-name drum 38 (see Fig. 13) with its center at the axis of rotation of the drum. Thus, as the pin 18 moves past the toothed wheel 19 it advances the wheel 19 one tooth of a turn) and similarly advances the month-name drum 38 to change the month name displayed in. the opening 23 of the frame 23'.

The admonition or signalling mechanism This mechanism is manually presettable for subsequent operation on a desired future date, to give notice of a special day; such as an anniversary, a birthday or the like.

This mechanism includes (Figs. 1, 4, 5, 13, 17 and 18) a cylinder 91, removably journalled by trunnions 91 at opposite ends of the latter, in a slant slot 98 (Figs. and '7) at a top portion 12 of the side plate 22and in. a similarslot 91 (Fig. 17) in the top portion of the vertical partition I89 (seealso Figs. 13 and 17).

The cylinder 91 is rotated through 5 of a revolution, with each rotation of the ordinaldate drum 39 through 161 of a revolution, by means (Figs. 5, 8, 9 and 13) incorporating a gear I9I fixed on oneend of the ordinal-date drum 39, an idler gear I82 rotatively mounted on the side plate 22, and a gear I83 fixed on one end of the cylinder 91.

The cylinder 91 has 372 flexible contacts I05 arranged in 12 columns spaced longitudinally of the cylinder and each column extending circumferentially about the cylinder 91 and each column. has 31 contacts. Each of the 12 columns represents a different month of the year. The cylinder is made of insulating material, and the flexible contacts are stamped fromv a conductive tubular shell I84 (see Figs. 18, 19 and 20).

Each of the contacts I85 is substantially U- shaped in outline and to be integral with the shell I84 at one end thereof. At the free ends of the contacts I85, the material of the shell I84 is cut away forming small openings I85 into which a pointed tool, not shown, may be inserted for lifting the free end of the respective contact I85 to be bent to the operative right angular extended position illustrated by the dot and dash lines I85 in Fig. 19.

Alongside the month-name drum 38 on the partition I88 there is a vertical bank of 12 contacts I85, one for each month (Figs. 1, 4 and 17). To one side of the month-name drum 33 (its left side in Figs. 10 and 13), and as most clearly shown in Fig. 17, there is fixed a cam I81, engaging a stud I88 on an arm I89 mounted on a fixed pivot H8 on the partition I80. A coil spring III urges the arm I89 to engage the stud I 88 against the cam I81 to act as a follower on the cam I81. The arrangement is such that as the month-name drum 38 moves from month to month during the year, to change the month name at the opening 23 of the frame 23', the arm I 89 is successively raised to move out of engagement with one of the contacts I88 and into engagement with the next above contact I86.

The arm I89, which is of conductive material. is part of a circuit subdivision including a lead II2, structurally seen in Fig. 1'1 and diagrammatically indicated in Fig. 1, from the terminal 4|. Each of the 12 contacts IDS is connected. as indicated in broken lines in Fig. 4, by a lead I13, with a different one of a second horizontal bank of 12 contacts II4 (Figs. 1, 4 and 1'7).

When the selected day or date arrives at which a reminder is to be given, the projected contact I85 of the cylinder 91, engages the respective contact I I4. and then a circuit is closed in which is interposed a signalling device, here shown as an electric lamp bulb II5 (Figs. 1, 2, 3 and 5); which circuit includes the proper lead I I3 (strum turally shown in Fig. 4 and diagrammatically indicated in Fig. 1) to the appropriate contact N4, the projected contact I85, the tubular shell I84 on the cylinder 91, a wiper or slip-ring connection IIS with the shell I84, a lead II1, the lamp bulb I I5, and a lead I I8 to the terminal 42.

As shown, in Fig. 2, the lamp H5 is located behind the window Opening 24 of the casing 24 to be clearly visible when lit. If desired the window opening 24 may be closed by a piece of appropriately colored. glass or any other desired translucent ornament.

Referring to Figs. 3, 4 and 6, a manual regulater is provided, for correlating the apparatus to a current date. The regulator includes a handknob H9 fixed on a short shaft 520 rotatively extended through the end plate 2| and on the inner end of which there is a gear segment I21 operatively adjacent a line of rack-teeth I22 on the slide 3i. On each of one or more successive turnings the knob H9 in the direction indicated by the arrow in Fig. 6, the slide 3| is raised to lift the pawl 34, and then, the segment [2| passing beyond the teeth I22, the spring 33 acts to snap down the pawl 34 to rotate the ratchet Wheel to modify the setting of the week-day drum 3'8, and energize the solenoid 40 by closing the contacts 44 and 45 as though the device were conventionally operated by the clock mechanism.

As will be understood, a bell, gong, buzzer or the like may be substituted for or used in addition to the lamp H5, or any other signalling means desired may be employed.

It is also to be understood that the apparatus may be used for any purpose, as for industrial time-clock operation, and also without the signalling mechanism if desired.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A device of the class described, comprising a clock mechanism including a continuous driven hour hand shaft, a fixedly mounted shaft, weekday, month-name and ordinal-date drums adjacent one another on said shaft and rotative relative to each other and to said shaft, and mechanical means operated by rotation of said hour hand shaft and interposed between said hour hand shaft and said week-day drum for rotating said week-day drum through oneseventh of a revolution for each two revolutions of said hour hand shaft, electrically controlled means for advancing said ordinal-date drum through of a revolution for each one-seventh revolution of said Week-day drum and for advancing said month-name drum through onetwelfth of a revolution for each complete revolution of the ordinal-date drum, said monthname drum including mechanism for advancing the ordinal-date drum independently of the weekday drum to advance the ordinal-date drum to skip the omitted last days of the short months of the year, said ordinal-date drum being rotative through /31 of a revolution to change the ordinal date to the next successive date number, electrical means for moving said ordinal-date drum through 4, of a revolution as the first half of said of a revolution, and mechanical means for moving said ordinal-date drum through a second 7 of a revolution as the second half of said of a revolution.

2. A device of the class described, comprising a clock mechanism including a continuous driven hour hand shaft, a fixedly mounted shaft, weekday, month-name and ordinal-date drums adjacent one another on said shaft and rotative relative to each other and to said shaft, and

mechanical means operated by rotation of said hour hand shaft and interposed between said hour hand shaft and said week-day drum for rotating said week-day drum through oneseventh of a revolution for each two revolutions of said hour hand shaft, electrically controlled means for advancing said ordinal-date drum through ,6, of a revolution for each one-seventh revolution of said week-day drum and for advancing said month-name drum through onetwelfth of a revolution for each complete revolution of the ordinal-date drum, said month-name drum including mechanism for advancing the ordinal-date drum independently of the weekday drum to advance the ordinal-date drum to skip the omitted last days of the short months of the year, said ordinal-date drum being rotative through /31 of a revolution to change the ordinal date to the next successive date number, electrical means for moving said ordinal-date drum through ,62 of a revolution as the first half of said /31 of a revolution, mechanical means for moving said ordinal-date drum through a second ,6 of a revolution as the second half of said of a revolution, and means operated by said mechanical means when moving said ordinaldate drum through said second of a revolution to reset said latter-mentioned electrical means.

3. A device of the class described, comprising a clock mechanism including a continuous driven hour hand shaft, a fixedly mounted shaft, weekday, month-name and ordinal-date drums adjacent one another on said shaft and rotative relative to each other and to said shaft, and mechanical means operated by rotation of said hour hand shaft and interposed between said hour hand shaft and said week-day drum for rotating said Week-day drum through oneseventh of a revolution for each two revolutions of said hour hand shaft, electrically controlled means for advancing said ordinal-date drum through of a revolution for each one-seventh revolution of said week-day drum and for advancing said month-name drum through onetwelfth of a revolution for each complete revolution of the ordinal-date drum, and a mechanical means operated by said electrically controlled means for advancing the ordinal-date drum through two successive movements of 7 of a revolution each to make possible repeated movements and to reset the electrical control means.

A GABRIEL KELLNER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

